Spectrum Ported: Choke constriction is laser marked, on color-coded band so there is no need to remove choke to verify size.

Spectrum Black Oxide Ported: Briley's Spectrum Black Oxide Series Chokes reduce felt recoil by five percent, have a laser marked color-coded band for easy constriction identification, and come in a black oxidized finish. Perfect for shooters who need the original spectrum choke, but with the sharp black oxidized finish.

Titanium: Briley's are the ULTIMATE CHOKE! Laser marked color-coded band for easy constriction identification, 50% lighter than steel, and less buildup!